Cutting-torch



R. VUiLLEUMlER. CUTTING TORCH. APPLICATION man 05012.1913.

Patented Aug. 22, 1916.

WITNESSES:

, UNITED STATES PATENT OFFICE.

RUDOLPH VUILLEUMIER, OF NEW ROCHELLE, NEW YORK, ASSIGNOR TO THE SAFETYCAB HEATING &, LIGHTING COMPANY, A CORPORATION OF NEW JERSEY.

CUTTING-TORCH.

Specification of Letters Patent.

Patented Aug. 22, 1916.

Application filed December 12, 1913. Serial No. 806,162.

To all whom it may concern:

Be it known that I, RUDOLPH VUILLEU- MIER, a citizen of the UnitedStates, residing in New Rochelle, county of Westchester, and State ofNew York, have invented a new and useful Improvement in Cutting-Torches,of which the following is a description.

This invention has reference to cutting torches, and particularlyrelates to torches adapted to utilize gases for the purpose of cuttingmetals. I

Among the objects of my invention may be noted the following: to providea torch with a tip adapted to utilize oxygengas, in combination withsome other gas or gases, as a means for cutting metals; to prpvide a gastorch, for cutting metals, having means for increasing its. efliciencyin operation by reducing the volume of gas necessary to be used in agiven operation and, at the same time, increasing the speed of operationof the torch, thus decreasing the time for performing any givenoperation with the torch; to rovide a cutting torch with a tip having aflame protector adapted to largely eliminate the entrainage of air; toprovide a combination of means by which gases may be combined andproperly distributed within the tip of the torch, so as to provide theeffective flame. while anther of the gases may be led independently tothe point of flame production, so as to become effective in the use ofthe torch; to provide a cuttingtorch with means by which the flame maybe materially shortened and intensified by automatically mixing thegases and confining the combustion thereof within a chamber,

thus avoiding the diluent effect of inert nitrogen upon the other gasesused; and to provide a torch-tip which 15 simple, compact, effective andeconomical in operation, and which may be economically produced.

With the above objects in view, and others which will be detailed duringthe course of this description, my invention consists in the parts,features, elements and combinations thereof hereinafter described andclaimed.

In order that my invention may be clearly understood, I have provideddrawings wherein:

Figure 1 is a sectional elevation of a torchtip and so much of theassociated parts as are deemed necessary to illustrate the applicationof my invention; Fig. 2 is a transextended into a reduced tlon 9,receiving a coupling-nut 10, through verse section substantially on theline 2-2 of Fig. 1, looking in the direction of the arrow adjacent saidline; Fig. 3 is a transverse section substantially on the line 3-3 ofFig. 1, looking in the direction of the arrow adjacent said line; Fig. 4is a section substantially on the line 4-4, Fig. 1, looking in thedirection of the arrow adjacent said line; Fig. 5 is an enlarged view insectional elevation, showin the executive end of the tip andsubstantially the mode of action of the gases; and Fig. 6 is asectional. elevation of the executive end of the tip, showing anotherform of construction contemplated by me.

Referring to the drawings, the numeral 1 indicates a union-nut, whichcouples the shank 2, of the torch-head 3, to the tube 4, containing apassage for mixed gases, this structure and the means by which the saidgases are mixed being, in all. material respects, substantially the sameas set forth in my application filed September 29, 1913, Serial No. 792,287; and it should be understood that my present invention in tipsfor cutting torches contemplates the use of an admixture of oil-gas andair preliminarily combined in much the same manner as set forth in mysaid application. In my present invention, the torch-head is provided atits lower end with a reduced, screw-threaded portion 5, upon which isthreaded the enlarged end 6, of the sheath 7 of the tip, the executiveend of which sheath is tapered to the form of a hollow truncated cone,as indicated at 8. The upper end of the head 3 is screw-threaded portheupper end of which is extended the pipe or tubing 11, the lower end ofwhich is provided with an enlargement 12, adapted to set against theextension 9 of the head and be tightly coupled thereto by the nut 10.The pipe or tube 11 is for the introduction of oxygen-gas through thehead and tip of the torch, its passage being extended through the upperend of the torch-head by means of the central bore 13, terminating in alarge chamber 14, the upper end of which is screw-threaded internally toreceive the screw-threaded upper end 15, of the tip, the body-portion ofwhich, for considerable of its length below the screw-threaded portion15, is provided with an exterior spiral-thread 17, operating as agas-passage and mixing-chamber. The body-por- 7 tion of the tip, whichis provided with time, become most effectively mixed and thespiral-threads 17, has cut therein commingled, the said circuitous pathof a plurality of longitudinal grooves 18, see travel of the gasesresulting in imparting to 1g.-4, extending to the root of the spiral thelatter a whirling action, which is exthreads 17. Preferably, the grooves18 are ceedingly effective as a mixer of the gases.

four in number and are equi-distantly Passing through the chamber 19,the gases spaced, and extend along the entire length of flow through thepassages 22, around the, the spirally-threaded portion of the tip, thushead 21, and thence through the groove-- 3. extending from thescrew-threaded portion passages 25, to the chamber 24. In additweenwhich latter and the sheath 7, the .plied' through the pipe 11, flowsthrough 15, to the reduced portion 16, of the tip, behen, the oxygen, orother cutting gas, supchamber 19 is formed, the latter thus beingpassages 13, 26 and 2 to the chamber 24. connected by the grooves withthe gas-pas. Under working conditions, the heating-flame sage 20,through the shank 2, of the torch assumes a substantially conical form,and head. Below the reduced portion 16, the takes its originat the lowerconical end 23, tip is provided with an enlarged head 21, of the tipinside the chamber 24, the flame hexagonal incross-section, as shown inFig. propagation being in an outward direction, 3, between the faces ofwhich and the sheath as clearly represented in Fig. 5, and is du- 1,passages 22 are formed, the several angles plex in character. That is tosay, in the of the head impinging against the internal operation of thetorch, the admlxture of 3 periphery of said sheath, thus making acongases passing between the tip and the sheath, tact between the tipand "sheath, adapted to and flowing to the chamber 24, has a tendproducea rigid structure. Below the head ency, in its egress from the tortuouspas- 21 of the tip, the latter is tapered to trunsage between'the tipand sheath, to hug the cated conical form, as at 23, correspondinglyinner wall of the sheath and form into a with the form of the lower end8 of the hollow-flame cylinder a; but, combustion of sheath; but, theconical tip-end is only subthe gases taking place in the chamber 24,close stantially half as long as the end 8 of the to the end 23 of thetip, results in the prosheath, thus providing a combustion chamductionof a second flame-cylinder 6, within ber 24, at the executive end of thetip, within the other, as clearly shown in Fig. 5. The the sheath. Inproducing the con1cal,exe cejection of the flame bodies thus formedutive end 23, of the tip, the surface of sald takes place withconsiderable velocity, so

- end is rounded to conform to the inner surthat the centralflame-cylinder b entrains the face of the sheath-end 8, and said tip-endflame-cylindera, which latter has a tendency surface is provided with aplurahty 91'' V- to hug the walls of the chamber 24, resulting 10oshaped grooves 25, each extending longitudiin the two flame-cylinderscombining a short nally of said surface from the extreme distance beyondthe executive end of the tip, lower end of said tip upwardly to thelgwer or extreme end of the sheath into an intense end of a flat face ofthe head, the form of flame, substantial] as indicated by c.

said grooves 25'being' such as to give to the The structural eaturesdescribed and the extreme lower end of the tip 23 the sixfunctionalcooperation thereof result in a pointed star shape shown in Fig. 2, thecutting-torch productive of a short and inpoints of which star engagethe inner periphtense cutting-flame, which is characterized cry of theconical end of the sheath, thus by the malntenance of combustion insideof producing. in the grooves 25,-passages for a chamber of comparativelysmall diameter. the gas which communicate with the pas- Moreover, theexecutive endof the tip, in sages 22, which latter in turn communicatecludmg the sheath and head, do not become with the chamber 19. Extendingentirely unduly heated for the reason that the head through the lengthof the tip 16, is a central and sheath are at all times in contact witha passage 26, the upper end of which commugases of comparatively lowtemperature, nicates with the passage 13 in the head, and whileexternally the sheath is surrounded by the lower end of which is reducedas at 27, comparatively cool air. and continues to the extreme lower endof have, in the foregoing description, de-. said tip, thuscommunicatingwith the chamscribed my invention, insome particulars, b 24with referenceto oil-gas, as described in my 12( It ill now b d t d f thabove aforesaid application; but, it will be obvious detaileddescription, that the gas mixture, to those skilled in the art that mytorch can flowing through the tube 4 and passage 20 of be pl y 111Ponnectlon Wlth gases of the shank 2, enters the chamber 14, of theother klnds, 'havln greater less heat" head 3, and follows thecircuitous path de- Producing unitsn fact, it is one of the scribed bythe spiral-threads 17, and also P f features invention h i fl l g thpassages 18, f th b d contains means for utllizing a gas which isportion of the tip until it enters the champ In heat umts; 111 practlqe,y ber 19, between the reduced portion 16 and 159mb a beer} f nd apableof reducing the sheath 7, the gases having, in the meantlme Of a g' n opratlon approximately 181 50% and also reducing the amount of gas-es usedapproximately 50%.

In the form of my invention shown in Fig. 6, I have provided an extendedtube or inner tip 28, which is formed in any suitable man ner on theextreme lower end of the executive end of the tip 16,.and through ,whichthe passage 27 is continued. By this means, the oxygen gas is conductedthrough the combustion-chamber 24, and may or may not combine with thegases in said chamber, according to the length of said ti 28, it beingunderstood that said tip may e carried to the extreme lower end of thesheath, or may terminate at a predetermined distance short of said end.

Having thus described my invention, what I claim and desire to secure byLetters Patent is: v

1. A cutting-torch comprising a head having a tip secured thereto, saidhead having a chamber and a plurality of passages leading thereto forthe admission of different gases, the tip being provided with acircumferential circuitous passage communicating with one of saidpassages, and with an independent passage formed in Continuity withanother of said passages.

2. A tip for cutting-torches comprising a body-portion, a sheathencircling the same, means between thetwo providing a circuitous passagefor gas, and the body-portion having an independent passage for gas,said body-portion, at its lower end, terminating a short distance withinthe terminal end of the sheath, whereby a combustion-chamber is providedat the executive end of the tip.

3 A tip for cutting-torches comprising a body-portion, a sheathsurrounding the .same, the body-portion" being provided with a central,longitudinal passage and with a circumferential, spiral passage, theexecutive end of the tip being rovided with a chamber with which bothsaid passages communicate.

4. A tip'for cutting-torches having a cen tral gas-passage, and a spiralpassage surrounding the central passage, and also having a plurality oflongitudinal passages intersecting the spiral passage, said tip havingat its executive end a combustion-chamber.

5. A cutting-torch comprising a head having a shank extending therefrom,said head having a chamber therein and a passage leading to said chamberand said shank having a passage communicating with said tip removablysecured to the head within said chamber and having a plurality ofpassages communicating with the the inner member and the outer member,vand a circuitous passage between said members and the executive end ofthe inner and outer members having a conical form and forming betweenthem, at the extremelower end, a chamber into which the severalgaspassages discharge.

7. A tip for cutting-torches provided with a plurality of longitudinalpassages for gas,-

said tip also having a spiral passage intersecting the other passages;and said tip having at its executive end a chamber with which all thepassages communicate, said executive end of the tip having a conicalform so as to tend to concentrate the gases.

at a given point.

8. A cutting torch comprising a head hav-. ing a chamber and passagesleading thereto, a tip removably secured to said head and provided witha combustion-chamber at its executive end, said tip being also providedwith a plurality of independent gas-passages communicating with saidchamber and entering the said combustion-chamber, whereby di 'erentgases may ,be conducted to .the combustion-chamber without .being ouslycombined or intermixed.

9. A cutting torch comprislng a head having a chamber and passagesleading thereto,

a ti set in the chamber of said head and provided with acombustion-chamber at its executive end, said tip being provided with aplurality of gas-passages independent of each other, and one or more ofsaid passages entering said combustion-chamber and head chamber.

In testimony whereof I have hereunto signed my name in the presence oftwo subscribing witnesses.

RUDOLPH VUILLEUMIER.

Witnesses:

MAXWELL GREENBERGER, E. E. ALL-BEE.

-'previ-

